The mobile utilities that are in Odoo are as follows:

• showToast(): To display toast
• vibrate(): To make a phone vibrate
• showSnackBar(): To display a snack bar with a button
• showNotification(): To display a mobile notification
• addContact(): To add a new contact in the phonebook
• scanBarcode(): To scan QR codes
• switchAccount(): To open the account switcher in Android

To learn more about mobile JavaScript, refer to https://www.odoo.com/documentation/12.0/reference/mobile.html.